Embodiments of this disclosure provide a signal transmission method and a communications device. The signal transmission method includes: obtaining auxiliary information of a synchronization signal of a preset operation frequency band; and transmitting or receiving the synchronization signal based on the auxiliary information, where the preset operation frequency band is an operation frequency band of a preset service, and the preset service is a sidelink service, an mMTC service, an NB-IoT service, or an IAB service; or the preset operation frequency band is an unlicensed frequency band.
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2. The signal transmission method according to claim 1, wherein the communications device is a terminal, and the auxiliary information is obtained in at least one of the following manners: being transmitted by a network-side device, being pre-configured on the terminal, being specified by the protocol, or being transmitted by another terminal.
This invention relates to signal transmission methods in wireless communications, specifically addressing the efficient and reliable transmission of auxiliary information between devices. The problem solved is the need for terminals to obtain auxiliary information in a flexible and adaptable manner to support various communication functions, such as synchronization, resource allocation, or interference management. The method involves a terminal acquiring auxiliary information through multiple possible sources. The auxiliary information can be transmitted by a network-side device, such as a base station, ensuring centralized control and coordination. Alternatively, the information may be pre-configured on the terminal itself, reducing reliance on real-time signaling. The information can also be defined by communication protocols, ensuring standardization and interoperability. Additionally, the terminal may receive the auxiliary information from another terminal, enabling peer-to-peer or device-to-device communication. This approach enhances flexibility by allowing the terminal to obtain auxiliary information from different sources based on availability, network conditions, or specific use cases. The method supports dynamic adaptation to varying communication environments, improving efficiency and reliability in signal transmission. The auxiliary information may include parameters, configurations, or data necessary for proper signal processing, synchronization, or resource management.
3. The signal transmission method according to claim 2, wherein when the auxiliary information is transmitted by the network-side device, the network-side device uses system information, a radio resource control (RRC) message, downlink control information (DCI), or a physical downlink shared data channel (PDSCH) to carry the auxiliary information.
This invention relates to wireless communication systems, specifically methods for transmitting auxiliary information from a network-side device to a user equipment (UE) to improve signal transmission efficiency. The problem addressed is the need for reliable and flexible transmission of auxiliary information, such as channel state feedback or beamforming parameters, to enhance communication performance in dynamic wireless environments. The method involves a network-side device transmitting auxiliary information to a UE using one of several transmission channels. The auxiliary information may be carried in system information, which is broadcast to all UEs in a cell, ensuring widespread availability. Alternatively, the information can be transmitted via a radio resource control (RRC) message, which allows for UE-specific configuration and detailed parameter settings. For more dynamic adjustments, the network-side device may use downlink control information (DCI), which provides low-latency signaling for rapid updates. Additionally, the information can be transmitted over a physical downlink shared data channel (PDSCH), enabling larger data payloads and more complex configurations. By leveraging these different transmission channels, the method ensures that auxiliary information is delivered efficiently, whether for broadcast, UE-specific, or real-time adjustments, thereby optimizing signal transmission in varying network conditions. The flexibility in transmission modes allows the system to adapt to different use cases, such as beamforming, interference management, or adaptive modulation and coding.
4. The signal transmission method according to claim 1, wherein the auxiliary information further comprises related information of the synchronization signal.
A signal transmission method involves transmitting a synchronization signal and auxiliary information to a receiving device. The synchronization signal is used to establish timing synchronization between the transmitting and receiving devices, while the auxiliary information includes additional data to assist in signal processing. In this method, the auxiliary information further comprises related information of the synchronization signal, which may include details such as the synchronization signal's structure, timing parameters, or other relevant metadata. This additional information helps the receiving device accurately interpret and process the synchronization signal, improving the reliability and efficiency of the communication system. The method is particularly useful in wireless communication systems where precise timing synchronization is critical for data transmission and reception. By providing related information of the synchronization signal within the auxiliary data, the system ensures that the receiving device can correctly align and decode the transmitted signals, reducing errors and enhancing overall performance. This approach is applicable in various communication protocols, including cellular networks, wireless local area networks, and other systems requiring precise synchronization.
6. The signal transmission method according to claim 1, wherein when the auxiliary information comprises the pattern information of the synchronization raster, the step of transmitting or receiving the synchronization signal based on the auxiliary information further comprises:-transmitting or receiving the synchronization signal on the first synchronization raster.
This invention relates to signal transmission methods, specifically for systems where auxiliary information includes synchronization raster pattern data. The problem addressed is improving synchronization signal transmission and reception in communication systems by leveraging predefined synchronization raster patterns. The method involves transmitting or receiving a synchronization signal based on auxiliary information that includes pattern information of a synchronization raster. When such pattern information is present, the synchronization signal is specifically transmitted or received on a first synchronization raster. This ensures precise timing alignment between transmitting and receiving devices, reducing synchronization errors and improving communication reliability. The synchronization raster defines a structured timing framework where synchronization signals are placed at specific intervals. By using the first synchronization raster, the method ensures that the synchronization signal is transmitted or received at the earliest possible time within the defined pattern, minimizing latency and enhancing system efficiency. This approach is particularly useful in wireless communication systems, where accurate synchronization is critical for maintaining data integrity and network performance. The method may be applied in various communication protocols, including but not limited to cellular networks, Wi-Fi, and other wireless standards that require precise timing synchronization. By dynamically adjusting the synchronization signal transmission based on the auxiliary information, the system can adapt to different network conditions and optimize performance.
12. The signal transmission method according to claim 1, wherein the reference position is a lowest frequency domain position, a highest frequency domain position, or a central position of a carrier used for transmitting the synchronization signal.
This invention relates to signal transmission methods in wireless communication systems, specifically improving synchronization signal transmission efficiency. The problem addressed is the need for accurate and reliable reference positioning in frequency domain transmission to enhance synchronization performance. The method involves selecting a specific reference position for transmitting synchronization signals, which can be the lowest frequency domain position, the highest frequency domain position, or the central position of the carrier used for the transmission. This selection helps optimize signal detection and synchronization processes by providing a consistent and predictable reference point. The method ensures that synchronization signals are transmitted at strategically chosen frequency positions, reducing ambiguity and improving the reliability of synchronization in wireless communication systems. By using these predefined reference positions, the system can achieve better synchronization accuracy and robustness, particularly in environments with varying signal conditions. The approach is applicable to various wireless communication standards and protocols where precise synchronization is critical for efficient data transmission and reception.
14. The communications device according to claim 13, wherein the auxiliary information further comprises related information of a synchronization signal.
A communications device is designed to enhance synchronization and data transmission in wireless networks. The device includes a transmitter configured to send a synchronization signal and auxiliary information to a receiving device. The auxiliary information includes related information of the synchronization signal, which may comprise timing, frequency, or other synchronization parameters. This auxiliary information helps the receiving device accurately decode and synchronize with the transmitted data, improving communication reliability and efficiency. The device may also include a receiver to obtain feedback or additional data from the receiving device, enabling adaptive adjustments to transmission parameters. The synchronization signal and auxiliary information are transmitted in a manner that minimizes interference and maximizes signal integrity, ensuring robust communication in diverse network environments. This technology is particularly useful in scenarios where precise timing and synchronization are critical, such as in cellular networks, IoT devices, or wireless sensor networks. The inclusion of related synchronization information in the auxiliary data stream enhances the device's ability to maintain synchronization under varying channel conditions, reducing errors and improving overall system performance.
15. The communications device according to claim 13, wherein when the auxiliary information comprises the pattern information of the synchronization raster, to transmit or receive the synchronization signal based on the auxiliary information, the processor is further configured to: transmit or receive the synchronization signal on the first synchronization raster.
This invention relates to wireless communications, specifically improving synchronization between devices by using auxiliary information to optimize synchronization signal transmission or reception. The problem addressed is the inefficiency and potential errors in synchronization when devices rely solely on predefined synchronization patterns without adaptive adjustments. The communications device includes a processor configured to process auxiliary information, which may include pattern information of a synchronization raster. The synchronization raster defines the timing and frequency resources used for synchronization signals. When the auxiliary information specifies the pattern of the synchronization raster, the processor transmits or receives synchronization signals on a first synchronization raster. This first synchronization raster is a predefined or dynamically determined set of time-frequency resources optimized for synchronization. The device may also adjust synchronization parameters based on the auxiliary information to improve reliability and reduce latency in communication links. The auxiliary information can be received from a network or another device, enabling adaptive synchronization strategies. This approach enhances synchronization accuracy and efficiency in dynamic wireless environments.
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January 27, 2021
June 4, 2024
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